# CVE-2018-11496: lrzip: In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in...

CVE-2018-11496 is fixed in lrzip on 1 platform by lrzip 0.631-1+deb9u1build0.18.04.1 (version 0.631-1+deb9u1build0.18.04.1), released May 26, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-11496
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0124
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 26, 2018

## Description

In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in lrzip.c lacks certain size validation.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | lrzip Ubuntu 18.04.6 LTS (bionic) | 0.631-1+deb9u1build0.18.04.1 | [lrzip 0.631-1+deb9u1build0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-lrzip-0.631-1-deb9u1build0.18.04.1.md) | May 26, 2018 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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